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Plasmonic nanopatch array for optical integrated circuit applications.

Shi-Wei Qu¹, Zai-Ping Nie

¹School of Electronic Engineering University of Electronic Science and Technology of China (UESTC) 2006 Xiyuan Avenue, Western High-Tech Zone Chengdu 611731, China.

Scientific Reports

|November 9, 2013

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Plasmonic nanoantenna arrays efficiently convert guided plasmons to light for high-speed optical circuits. These arrays also function as spectrometers and spatial filters for advanced photonic applications.

Area of Science:

Photonics
Plasmonics
Nanotechnology

Background:

Future plasmonic integrated circuits require efficient optical emission from plasmonic waveguides for high-speed data processing.
Plasmonic nanoantennas are crucial for bridging the wave vector mismatch between free-space and guided photonics.

Purpose of the Study:

To apply microwave antenna array concepts to plasmonic nanoantenna arrays for efficient light conversion.
To develop plasmonic nanoantenna arrays capable of acting as spectrometers and spatial filters.

Main Methods:

Utilizing nanopatch antennas coupled with a wedge plasmon waveguide.
Adapting principles from microwave antenna arrays for plasmonic wave manipulation.

Main Results:

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Demonstrated efficient conversion of plasmonic waves to free-space optical waves and vice versa.
Showcased the array's capability as a spectrometer and spatial filter for specific wavelengths.

Conclusions:

Plasmonic nanoantenna arrays are key to enabling efficient optical emission in future plasmonic integrated circuits.
The proposed design offers versatile functionalities for light manipulation and spectral analysis in photonic systems.